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Linewidth of a polariton laser: Theoretical analysis of self-interaction effects

D. Porras·C. Tejedor
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Abstract

Polaritons in semiconductor microcavities can experience a Bose-Einstein condensation experimentally detectable in the spectrum of the emitted light. Scattering with noncondensed particles as well as self-interaction in the condensate provoke phase-diffusion limiting the coherence of the polariton condensate. We present a theoretical analysis of self-interaction effects on the lineshape of the emission from a polariton laser. Our calculations, for CdTe microcavities, show that there is an optimum pump at which the linewidth of the emitted light is reduced down to 1 $μ$ eV.

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D. Porras, C. Tejedor. 2003-03-24. Linewidth of a polariton laser: Theoretical analysis of self-interaction effects. https://doi.org/10.1103/physrevb.67.161310

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